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Strategic Designer & Seaweed Researcher
@archivodelasalgas
@theseaweedplace
nyc
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Colored Illustrations of the Seaweeds of Japan
(原色日本海藻図鑑 / Genshoku Nihon Kaisō Zukan) is a comprehensive field guide and taxonomic atlas for seaweed. Originally published in 1956 and expanded throughout the late 1970s-80s, this botanical reference remains essential for biologists, researchers, and enthusiasts seeking to identify and understand Japan’s diverse seaweed ecosystems.

Sōkichi Segawa was a pioneering Japanese phycologist who transformed Japan’s nori industry. After reading the groundbreaking research of British scientist Kathleen Drew-Baker on edible red seaweed cultivation, Segawa recognized its applications to Japanese nori farming. His collaboration with fisheries expert Fusao Ota led to the development of artificial seeding techniques in 1953—revolutionizing nori from unpredictable wild harvests into stable, cultivated crops.
Segawa’s work bridged international scientific research with practical conservation, proving that the study of seaweed extends far beyond taxonomy. It sustains communities and cultures.
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We had the honor of visiting one of the most important seaweed collections in the world: the University Herbarium at UC Berkeley @ucberkeleyofficial , which contains over 80,000 specimens of marine seaweed from California, the Pacific Coast, and different parts of the world.

The collection, built over more than two centuries, safeguards incredible historical specimens, including seaweed from Chile, Patagonia, and the Juan Fernández Archipelago, collected and identified by the legendary Dr. Sylvia Earle. Additionally, it houses the Silva Center for Phycological Documentation and the Index Nominum Algarum, one of the most important databases in the world for seaweed taxonomy and nomenclature.

Beyond the specimens, what made this visit truly meaningful was meeting Kathy Ann Miller, Curator of Seaweed at UC Berkeley. Kathy Ann began studying seaweed in 1976 at the Bodega Marine Laboratory, and since then has dedicated her life to researching, teaching, collecting, and caring for marine seaweed. Her work on the California coast and the Channel Islands has been fundamental to contemporary phycology.

It was incredibly inspiring to discover her simplicity, warmth, thoughtful generosity, and deep love for seaweed. We talked for hours passionately about seaweed, the ocean, the current context we live in, the challenges, ways of recognizing nature, and the importance of sharing knowledge with all those who wish to participate.

This visit was a source of inspiration. This herbarium is not just a scientific collection: it is also a living archive of care, memory, and relationships with the ocean.
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